Shurter, R. (1982). Effective letters in business. Tata Mc Graw Hill.
Chicagoスタイル(17版)引用形式Shurter, Robert. Effective Letters in Business. New Delhi: Tata Mc Graw Hill, 1982.
MLA(9版)引用形式Shurter, Robert. Effective Letters in Business. Tata Mc Graw Hill, 1982.
警告: この引用は必ずしも正確ではありません.